同煤科技
同煤科技
동매과기
SCIENCE AND TECHNOLOGY OF DATONG COAL MINING ADMINISTRATION
2015年
2期
6-9
,共4页
煤矿开采%盘区煤柱%沿空掘巷
煤礦開採%盤區煤柱%沿空掘巷
매광개채%반구매주%연공굴항
coal mining%panel pillar%gob-side entry
基于大同煤矿集团公司四老沟矿301盘区煤柱面的生产地质条件，综合运用FLAC3D数值计算、现场地质调研和理论分析的方法，从巷道围岩应力分布和表面位移两个方面分析了沿空掘巷围岩变形规律，确定合理的煤柱宽度为5m。在此基础上对巷道支护参数进行了优化，达到了提高资源回收率的目的。
基于大同煤礦集糰公司四老溝礦301盤區煤柱麵的生產地質條件，綜閤運用FLAC3D數值計算、現場地質調研和理論分析的方法，從巷道圍巖應力分佈和錶麵位移兩箇方麵分析瞭沿空掘巷圍巖變形規律，確定閤理的煤柱寬度為5m。在此基礎上對巷道支護參數進行瞭優化，達到瞭提高資源迴收率的目的。
기우대동매광집단공사사로구광301반구매주면적생산지질조건，종합운용FLAC3D수치계산、현장지질조연화이론분석적방법，종항도위암응력분포화표면위이량개방면분석료연공굴항위암변형규률，학정합리적매주관도위5m。재차기출상대항도지호삼수진행료우화，체도료제고자원회수솔적목적。
Based on production geology conditions of the coal pillar of 301 panel in Silaogou Mine of Datong Coal Mine Group, the methods of FLAC3D numerical simulation, field geological investigation and theoretical analysis are integraetly used, surrounding rock deformation law of gob-side entry is analyzed from surrounding rock stress distribution of roadway and surface displacement, the 5 m reasonable coal pillar width is determined, on this basis, the parameters of roadway support are optimized, the purpose of raising resource recovery rate is achieved.
